Based in NYC

AI engineer. Side-project addict. NYC.

I'm Keefer — an AI engineer with 5+ years of experience. Previously 3+ years at Amazon shipping everything from Rust in Prime Video to AWS console infrastructure. On the side, I build AI products like SlideToAnki.

About

A bit about me

I studied electrical engineering in college, but software is where I found my lane. I taught myself to code, landed my first engineering role at Siemens working on railroad control systems in C/C++, and spent 3+ years at Amazon building everything from AWS console UIs to low-level Rust in Prime Video.

Outside of work, I ship side projects. AIBookArt generates AI-powered book cover art and actually makes money. Personal AI Publicist helps people build their personal brand using AI. I like building things that solve real problems — even small ones.

I live in NYC. When I'm not coding, I'm exploring the city or staying current on the GenAI space. Currently figuring out what to build next.

5+Years Experience

20+Projects Shipped

15+Technologies

5Companies

Technical Skills

Frontend

ReactTypeScriptNext.jsJavaScriptHTML/CSSTailwindVite

Backend

Node.jsPythonRustC/C++JavaExpressPostgreSQLMongoDBDynamoDB

Cloud & Infra

AWSGoogle CloudLambdaEC2S3SQSCloudWatchIaCCI/CD

Tools

GitJestLinuxDistributed SystemsWebRTCAnalyticsPrismaDrizzle

Experience

Where I've worked

Amazon

Software Development Engineer

September 2022 - February 2025New York, NY

Prime Video (April 2025 - Present): Currently developing the at-home client for the Prime Video app using Rust, focusing on implementing the ability to favorite stations on the Live TV page
AWS Managed Services Console (2022-2025): Designed and developed user interface using AWS IAM, AWS Orgs, React, Infrastructure-as-Code, and TypeScript to provide customers with insights across multiple enterprise AWS accounts
Designed and developed reprocessing system for distributed asynchronous message bus service using AWS Lambda and AWS SQS, reducing time to reprocess message data by 4 hours
Implemented customer onboarding platform with React, Vite, DynamoDB (NoSQL), NodeJS reducing time-to-onboard each customer by 7 days
Added UI component to Amazon's component library for editing JSON schemas using recursive algorithms and accessibility best-practices
Lead design reviews for a system to emit KPI metrics used by business intelligence for customer data insights

Siemens

AI Engineer

June 2021 - September 2022New York, NY

Designed and developed a railroad testing management tool using React and Google Cloud to simplify QA engineers testing workflows
Supported software development for railroad crossing controllers working with Linux and C/C++ to write asynchronous networking software in embedded systems
Designed and developed configuration management software using the C programming language to reduce system downtime across 1000s of production railroad crossing controllers

Projects

Things I've built

Next.jsFastAPIGPT-4oPython

SlideToAnki

AI-Powered Lecture → Flashcard Pipeline

Upload lecture slides (PDF or PPTX) and GPT-4o generates high-quality Anki flashcards with cloze deletions, clinical reasoning Q&A, and embedded images — ready to export as .apkg and start studying immediately.

Visit project

Contact

Get in touch

Always happy to chat about new opportunities, side projects, or just tech in general. Drop me a message or find me on socials.